Spindle mounting for shuttles



Dec. 6, 1938..

SPINDLE MOUNTING FOR SHUTTLES I Filed Sept. 10, 1937 Hgg yaa a) Inven Mr Richard B. Turner R. G. TURNER 2,139,427

Patented Dec. 6, 1938 PATENT OFFICE SPIND'LE MOUNTING FOR SHUTTLES Richard G. Turner, Worcester, Mass, assignor to Crompton & Knowles Loom Works, Worcester,

Mass, a corporation of Massachusetts Application September 10, 1937, Serial No. 163,195

12 Claims.

This invention relates to improvements in shuttles and more particularly to mountings for the spindle which carries the weft supply, or quill.

With present tendencies to increase loom speed it is desirable to use a shuttle which is shorter than those customarily used for the same yarn carrying capacity. When the shuttle is shortened it is possible also to shorten and therefore lighten the lay so that it can be moved more rapidly.

When looms are operated at a higher rate of speed a given supply of weft in the shuttle is used up at a quicker rate so that hand replenishment needs to be made more often than with slower running looms. Where it is permissible to keep the shuttle and lay length of former dimensions, it is desirable in order not to increase the labor incident to renewing the weft to have a shuttle which will carry an increased amount of filling which in point of minutes will last practically as long as the former type of shuttle running in a slower moving loom. It is a further object of my present invention to provide a shuttle construction which will have an increased weft capacity to compensate for the greater rate at which it is picked.

Fly shuttles are customarily provided with metallic conical points at their ends to receive the thrust of the picker. These points must'be held rigidly to the shuttle and this result has heretofore been accomplished by the provision of a relatively long shank projecting inwardly from the tip and threaded or otherwise secured to the wood of the shuttle. Because of the blow which the shuttle strikes when boxing it is necessary to maintain this shank substantially the same as heretofore used and any attempt to move the pivot of the spindle in the old type of shuttle nearer the end thereof results in interference between the spindle pivot and the point of the shank.

In order that the quill and the spindle may be relatively longer than is found in former practice I provide a construction in which the head of the quill lies considerably nearer the shuttle point than formerly and arrange to pivot the mounting for the spindle at a point inwardly from the outer end or head of the quill. By this arrangement the head of the quill lies somewhere between the spindle pivot and the adjacent point of the shuttle and there results an increase in the Weft compartment permitting the carrying of a larger supply of weft. This result I attain by having the spindle pivots at the sides of the spindle so that the weft can lie between the pivots.

With these and other objects in view which'will appear as the description proceeds, my invention resides in the combination and arrangement of parts hereinafter described and set forth.

In the accompanying drawing, wherein a con-g,

venient embodiment of my invention is set forth,

Fig. 1 is a plan view of a shuttle made according to my present invention,

Fig. 2 is a vertical section on line 2-2 of Fig. l with the spindle in normal weaving position,

Fig. 3 is a view similar to Fig. 2, but with the spindle in reloading position,

Fig. 4 is a perspective view of the spindle positioning spring,

Fig. 5 is a perspective view of part of the spin-.1 w

die and the pivoted carriage therefor, and

Fig. 6 is a perspective view of the support on which the carriage is pivoted.

Referring to the drawing, the shuttle S may have a tension designated generally at T at the, left end thereof forming no part of my present invention but customarily employed in shuttles having quill carrying spindles, especially when adapted for theweaving of silk. At each end of the shuttle there is a conical tip [0 made of metal and having a shank ll extending into the wooden body l2 of the shuttle. I deem it desirable to keep the shank H of substantially the same length as that formerly used, although I do not wish to be limited in the practice of my. invention to a shank as a means for holding the tip to the shuttle. A quill Q having a head I-I carries a package of weft W which in the present instance is longer than that which is ordinarily found in shuttles having the same overall length. as a shuttle made according to my invention.

The parts already described are of common construction and of themselves form no part of my invention except that the quill and the weft package will be longer than formerly.

in carrying my present invention into effect I provide a support member 20 having a vertical end wall 2| from which project front and back wings 22 and 23, respectively. Extending inwardly and horizontally from the top edge of the= The support 20 has secured thereto as by rivet.-

ing a shank 28 which extends into the body l2 toward the shank l l of the shuttle point. A cross pin 29 extending into the body of the shuttle and through the shank 28 holds the latter in poifihi This pin may if desired have a threaded h threaded into the shuttle body and have also a tapered body 3| extending through a hole 32 in the shank 2B.

Adjacent the upper inner ends of the wings 22 and 23 are pivot studs 35 which are in alignment with each other to define a spindle axis transverse of the shuttle. These studs lie at the sides of the weft compartment C on opposite sides of the quill and at a point along the length of the shuttle between the ends of the quill. A stop pin 36 on wing 23 limits the angular position of the quill as will be set forth hereinafter.

The quill carrying spindle 40 may be of any desired construction but as set forth herein I form it with a slot 4| to form two parts resilient enough to hold the quill Q tightly in the shuttle. The outer or right hand end of the spindle as viewed in Fig. 2 is secured to an end wall 42 of a pivoted carriage designated generally at 43. From the end wall there extend inwardly toward the center of the shuttle front and back plates 44 and 45, respectively, substantially parallel to the spindle as shown herein. The upper inner ends of the plates are perforated with pivot bearings 46 which receive the studs 35. The carriage 43 is made preferably of resilient sheet metal so that the plates 44 and 45 may be sprung during assembly to permit fitting of the studs 35 into the bores 46, after which the resiliency of the plates holds the bearings around the studs 35.

As shown in Fig. 4 I provide a U-shaped spring having an outer vertical wall 5| and an inner wall 52 the upper end of which may be slightly curved outwardly and upwardly as at 53, if desired. The inner wall 52 is positioned to engage the end wall 42 of the carriage along an area located at the level of the studs 35, see Fig. 2. The rear plate 45 ispositioned for engagement with the stop pin 36 when the spindle is in the position shown in Fig. 3, in which position the spring holds the spindle yieldingly.

When assembling, the wings 22 and 23 are spread apart prior to application to the shuttle, while the plates 44 and 45 are compressed toward each other, after which the bores 46 may be fitted over the studs 35. The spring 50 is then inserted from below between walls 2| and 42, being limited by guard 25. This assembly is then inserted into a pocket at the right end of compartment C, shank 2B entering a bore 6! in the shuttle body .I2 and wall 2| abutting the end 62 of the pocket. The fioor 63 of the pocket holds the spring 50 in place. Pin 29 is then inserted as already described and the shuttle is ready for use.

When a quill is to be applied to the spindle the latter will be lifted to the position shown in Fig. 3, the spring engaging the upper edge 10 of the end wall 42 at such a position as to exert a turning moment on the spindle about the axis of the studs 35, the stop pin 36 acting, however, to limit angular motion of the spindle under action of the spring. When the quill is applied to the spindle the head H will pass below the lip 26 to some such position as indicated in Fig. 3, after which the quill and spindle are pressed down into the weft compartment C, turning about the studs 35 as an axis. The wall 52 of the spring bears against the end wall 42 to maintain the spindle in a horizontal position with respect to the shuttle, exerting pressure directly against the pivotal axis of the spindle, while the lip 26 extends downwardly to a point below the top of the quill head 21 and therefore serves to prevent dislodgment of the quill, aswill be understood froman inspection of F18. ,2. The lip 26 is spaced from the studs 35 present invention locates the pivots at the sides of the quill and for this reason they can be located at points nearer the center of the shuttle than formerly. Furthermore, the lip 26 is located far enough away from the axis of the spindle to release the head H of the quill when the spindle is raised to the position of Fig. 3.

It will also be apparent from Fig. 2 that the wall 42 of the carriage assists in positioning the axis of the spindle. The upper part of the wall just below the edge 10 is curved to conform to the curve 53 of the spring, these curved surfaces resisting accidental upward turning of the spindle, while engagement of the edge 10 with the top 25 of the support prevents improper downward turning of the spindle. It will therefore be seen that the upper end of the end wall 42 cooperates with the spring and with the top 25 to hold the spindle axis horizontal in the shuttle during normal weaving.

Having thus described my invention it will be seen that changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention and I do not wish to be limited to the details herein disclosed, but what I claim is:

1. In a loom shuttle, a spindle, a weft carrier thereon, and pivot means connecting the spindle and shuttle located at the sides of the weft carrier,

and intermediate the ends thereof.

2. In a loom shuttle, a spindle, a weft carrier on the spindle, and means defining a pivotal support for the spindle movable about an axis located along the length of the shuttle at a point between.

the ends of the weft carrier.

3. In a loom shuttle, a spindle, a weft carrier thereon, and means providing a pivotal connection between the shuttle and spindle presenting an axis transverse of the shuttle and located between,

the ends of the weft carrier.

4. In a loom shuttle, pivot members carried by and fixed with respect to the shuttle, a spindle, a weft carrier on the spindle, a carrier for the spindle having pivot elementsto cooperate with the members to provide an axis around which the spindle moves, said members and elements located at the sides of the weft carrier and the axis lying between the ends of the weft carrier.

5. In a loom shuttle, a spindle to be moved angularly with respect to the shuttle, a weft car rier mounted on the spindle, a support fixed with respect to the shuttle and having side members, a carriage for the spindle, and means defining aligned pivotal connections between the carriage and the side elements lying along an axis intermediate the ends of the weft carrier.

6. In a loom shuttle, a spindle, a weft carrier on the spindle, a carriage for the spindle having spaced side elements substantially parallel to the spindle, a support for the carrier fixed to the shuttle and having side elements substantially parallel to the spindle, a support for the carrier fixed to the shuttle and having side elements substantially parallel to the spindle, and means pro- 575 viding aligned pivotal connections between each side element of the carriage and. the adjacent side element of the support, the axis of the pivotal connections being located at a point along the length of the shuttle between the ends of the weft carrier.

7. In a loom shuttle, a spindle, a weft carrier on the spindle having a head, a supporting member fixed to the shuttle and having a lip, and means i defining a pivotal connection between the spindle and the supporting member, the axis of the piv otal connection lying between the ends of the weft carrier and at a point toward the center of the shuttle with respect to the head of the weft carrier and the lip, the spindle when in weaving condition turning about said pivotal connection to move a part of the weft carrier head in horizontal alignment with the lip to enable the latter to prevent said weft carrier from slipping off the spindle, and said spindle when moved about the pivotal connection moving the weft carrier head to a position below the lip to permit removal of the weft carrier from the spindle.

8. In a loom shuttle, a spindle having a weft carrying zone extending along the length thereof, and pivotal connections between the spindle and the shuttle, the axis of said pivotal connectionslying along the length of the shuttle at a point intermediate the ends of said weft carrying zone of the spindle.

9. In a loom shuttle, a spindle having a weft carrying zone, a spindle carrier moving with and secured to one end of the spindle and having arms lying at the sides thereof and extending toward the opposite end of the spindle, and pivotal connections between the arms and the shuttle, the axis of said pivotal connections being located at a point intermediate the ends of said zone.

10. In a loom shuttle, a spindle having a weft carrying zone, a spindle carrier connected to one end of the spindle and having parallel arms extending at the sides of the spindle toward the other end thereof, a carrier support fixed to the shuttle, and means defining a pivotal connection between said arms and the carrier support, the axis of said pivotal connection lying along the length of the shuttle at a point intermediate the ends of said weft carrying zone.

11. In a loom shuttle operating with a weft carrier having a head, a spindle having a weft carrying zone to receive the Weft carrier, means defining a pivotal connection between the spindle and the shuttle, the axis of said pivotal connection being intermediate the ends of the weft carrying zone, and a stop carried by the shuttle located between said axis and the head of the weft carrier and projecting below the top of said head when the spindle extends along the shuttle axis.

12. In a loom shuttle, a spindle having a weft carrying zone, means. defining a pivotal connec tion between the spindle and the shuttle, the axis of said pivotal connection lying at a point along the shuttle intermediate the ends of said weft carrying zone, the spindle to be pivoted upwardly around said axis, a quill on the spindle extending along said zone and having a head, and a stop carried by the shuttle between said axis and the adjacent end of the shuttle, said spindle when pivoted upwardly moving the head of the quill below said stop to permit removal of the quill from the spindle, and said spindle when returning to normal weaving position pivoting down around said axis to place a portion of the head above said stop and at a point beyond the latter with respect to the spindle axis.

RICHARD G. TURNER. 

